DeconvolverNode - Githubissues

WebAudio / web-audio-api

The Web Audio API v1.0, developed by the W3C Audio WG

https://webaudio.github.io/web-audio-api/

Other

1.04k stars 166 forks source link

DeconvolverNode #2385

Closed mishushakov closed 1 year ago

mishushakov commented 3 years ago

Describe the feature

Consider adding a DeconvolverNode to subtract (deconvolve) impulse response/filter from a signal

Is there a prototype? No

Describe the feature in more detail

https://en.wikipedia.org/wiki/Deconvolution

rtoy commented 3 years ago

What is your use-case for this?

mishushakov commented 3 years ago

i want to record an audio when playing a sound and then subtract the sound from the recording to get the reverb/impulse response

rtoy commented 3 years ago

Today's teleconf: We feel this is outside the scope of WebAudio for your use case. WebAudio is about producing audio, and the use case it to obtain a reverb or impulse response.

mishushakov commented 3 years ago

i think generally it fits the purpose of producing audio the goal of deconvolution is to recreate the signal as it existed before the convolution took place

rtoy commented 3 years ago

Teleconf today: We discussed this again. The general consensus was

No existing DAWs apparently have this
The solution generally requires knowledge of the signal and the noise to get the right algorithm.
Probably can't choose an algorithm that will satisfy everyone. * It seems that you're doing this in an offline manner. This could be done using an OfflineAudioContext with an AudioWorklet. Or just using a WASM implementation of your favorite deconvolution algorithm.

While many things could be added, we felt the use case for a deconvolver node was fairly limited.

We will not pursue this at the current time.

hoch commented 1 year ago

TPAC 2022: Per the comment above, we suggest to use AudioWorklet and WASM to implement this.